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<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=793969
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  <meta charset="utf-8">
  <title>Test for Bug 793969</title>
  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=793969">Mozilla Bug 793969</a>
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<pre id="test">
<script type="application/javascript">

/** Test for Bug 793969 **/
function checkThrows(f, desc, skipMessageCheck) {
  try {
    f();
    ok(false, "Should have thrown for " + desc);
  } catch (e) {
    ok(true, "threw correctly");
    if (!skipMessageCheck)
      ok(/denied/.exec(e), "Correctly threw a security exception: " + e);
  }
}

checkThrows(function() { location.valueOf = 'hah'; }, 'Shadow with string');
checkThrows(function() { location.valueOf = function() { return {a: 'hah'};} }, 'Shadow with function');
checkThrows(function() { Object.defineProperty(location, 'valueOf', { value: function() { return 'hah'; } }); }, 'defineProperty with value');
checkThrows(function() { delete location.valueOf; Object.defineProperty(location, 'valueOf', { value: function() { return 'hah'; } }); }, 'delete + defineProperty with value');
checkThrows(function() { Object.defineProperty(location, 'valueOf', { getter: function() { return 'hah'; } }); }, 'defineProperty with getter');
checkThrows(function() { delete location.valueOf; Object.defineProperty(location, 'valueOf', { getter: function() { return 'hah'; } }); }, 'delete + defineProperty with getter');

Object.prototype.valueOf = function() { return 'hah'; };
is(({}).valueOf(), 'hah', "Shadowing on Object.prototype works for vanilla objects");
is(location.valueOf(), location, "Shadowing on Object.prototype and Location.prototype doesn't for location objects");

// Make sure that Location.prototype can't be mucked with.
function checkProto() {
  "use strict"
  checkThrows(function() { Location.prototype.foo = 'hah'; }, 'adding new property to Location.prototype', /* skipMessageCheck = */ true);
  checkThrows(function() { Location.prototype.valueOf = 'hah'; }, 'defining valueOf on Location.prototype', /* skipMessageCheck = */ true);
  checkThrows(function() { delete Location.prototype.toString; }, 'deleting property on Location.prototype', /* skipMessageCheck = */ true);
  checkThrows(function() { Location.prototype.toString = 'hah'; }, 'setting property on Location.prototype', /* skipMessageCheck = */ true);
  checkThrows(function() { Object.defineProperty(Location.prototype, 'toString', {value: 'hah'}); }, 'defining property on Location.prototype', /* skipMessageCheck = */ true);
};
checkProto();

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